Shuttle-motion.



PATENTED DEC. 10', 1907,

G. M. V N GULIN. SHUTTLE MOTION. APPLICATION FILED NOV. 2a. 1906.

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SHUTTLE MOTION.

APPLICATION FILED NOV. 28, 19W.

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GEORGE M. VON CULIN, OF PHILADELPHIA, PENNSYLVANIA.

SHUTTLE-MOTION.

Specification of Letters Patent.

Patented Dec. 10, 1907.

Application filed November 28, 1906. Serial No. 345,495.

To all whom it may concern:

Be it known that I, GEORGE M. VoN CULIN, a citizen of the United States, and a resident of the city and county of Philadelphia, State of Pennsylvania, have invented certain new and useful Improvements in Shuttle-Motions, of which the following is a specification.

My invention relates to improvements in shuttle movements for narrow fabric looms, and the object of my invention is to. furnish a means for carrying the shuttles in either direction quickly across the spaces in ,the batten of the loom when the lay is in a position near the greatest opening of the shed so as to avoid all contact between the shuttle and warp, and which willpermit the shuttle to remain entirely at rest after having been so actuated until the driving shaft of the loom has been turned nearly four-fifths of a revolution.

In my invention the shuttles remain at rest for a considerable interval of time between each pick and therefore the operator is enabled to stop the loom to repair a broken warp, &c. with less danger of injury to the fabric being woven than is possible with the use of the devices which cause the shuttles to be more constantly in operation.

In the accompanying drawing forming part of this specification and in which similar letters of reference indicate similar parts throughout the several views :Figure 1, is a side elevation of part of a loom embodying my shuttle operating means; Fig. 2, a plan of Fig. 1; Fig. 3, a perspective view of part of the batten of the loom to show the connection between the straps and the rack operating the shuttles; Fig. 4, an enlarged 1 side elevation of my means for driving andfor holding the shaft carrying the double crank which carries the straps for operating iirhe shuttle actuating rack. Fig. 5, a plan of It is the main driving shaft of a loom, b a gear wheel carried by shaft 0., which meshes with and drives a gear wheelc; d is a segmental gear revolving with gear c, which during part of its revolution is in engagement with and driving a gear wheel e upon the shaft f on which is a double crank g which carries'one of the ends of two straps h-i. The straps h i pass under pulleys j7c, Figs. 2 and 3, over pulleys Zm, Fig. 3, and their other ends are fastened to a rack n, Fig. 3, whichby the movement of the straps, as dictated by the double crank g, draw the rack n first in one direction and then in the other to actuate the shuttles 0 in a well known manner. I

As has been stated the segmental gear d,

engages and drives the gear 6 to actuate the rack n, this movement is timed to take place when the shed is fully opened, or very nearly opened, and in order that the movement of the rack n may entirely cease when having been drawn in either direction to its full extent and may there remain at rest until the shed is again opened I make use of the following device for holding the gear 0 rigidly at rest between the intervals of its operation by the segmental gear d.

p is an arm fast to the gear a, or to the shaft f, and upon opposite ends furnished with notches r, 1" which are adapted to be engaged successively by a tooth s which is carried upon one arm of a bell-crank lever t which is pivoted at u. The other arm of this lever carries a friction roller 1) which is adapted to be engaged by a cam w which rotates with the segmental gear (1. A spring as normally holds the bell-crank in the position shown in Fig. 4. I

The operation of the device is as follows: The gear I) is driven by the main shaft a of the loom and drives the gear 0, the segmental gear (1 and the cam w. Presently the cam w engages the friction roller 1) on the bell-crank t and moves in the arm of the bell-crank carrying this roller, this movement causes the arm of the bell-crank carrying the tooth s to be lifted until the tooth is out of engagement with the notch 1' in the arm 19 with which it has until now been in engagement. As soon as the tooth and notch are out of engagement the segmental gear d is brought into engagement with the gear e which it rotates one-half a turn. When the segmental gear d leaves the gear 6 the cam w leaves the roller '0 and the spring as brings the tooth 8 into the notch r upon the end of the arm 1). The gear wheel 6 and the double crank g are thus rotated one-half a revolution for each complete revolution of the main driving shaft a, but owing to the ratio between the se mental gear d and the spur gear e, the ha f revolution of the gear 6 1s accomplished during one-fifth of the revolution of the main driving shaft.

The movement of the shuttles takes place only during the movement of the spur gear 6 hence during four-fifths of the revolution, of the fly wheel the shuttles are at rest.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:

1. In a shuttle motion for narrow fabric looms, in combination, With the main driving shaft of the loom, a shuttle actuating rack, means driven from the main shaft of the loom for reciprocating said rack, and means actuated by the movement of said main shaft for locking said shuttle reciprocating means at the completion of each stroke of said rack and for unlocking said means immediately prior to each stroke.

2. In a shuttle motion for narrow fabric looms, in combination, a shuttle actuating rack, a shaft,'a spur gear on said shaft, an arm on said shaft, furnished at points diametrically opposite With notches, a double crank on said shaft, a segmental gear driven from the main shaft of the loom for intermittently actuating said gear wheel, a bell crank lever, a stop carried by one arm of said lever for engaging the notches in said arm, a cam moving with said segmental gear for aetuating said bell crank lever to cause a disengagement of said stop and notches, a spring normally causing said stop to engage one of said notches, and connections between each of said cranks and the rack, one serving to move said rack in one direction, the other in the other direction.

GEORGE M. VON (IULIN.

Vvitnesses GEORGE W. SELTZER, CHARLES A. RUT'IER. 

